Large-scale mechanical preparation of graphene containing nickel, nitrogen and oxygen dopants as supercapacitor electrode material

Liu, Liangyu; Xie, Zhengjie; Du, Xiaoze; Yu, Deyang; Yang, Bin; Li, Bing; Liu, Xiaoyang

doi:10.1016/j.cej.2021.132815

Cited by 10 publications

(10 citation statements)

References 41 publications

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“…Figure a illustrates the MoS 2 nanosphere electrode that has a potential sweep from 0.1 to 0.5 V which is very different from a rectangular shape with strong pairs of redox peaks through the anodic and cathodic peaks. A definitive redox curve can be observed in the CV curves, which signifies a typical pseudocapacitive performance caused by the existence of a reversible Faradaic reaction. , Figure b shows the CV of the Bio-C electrode which has confirmed a nearly rectangular structure without any noticeable redox peaks within the voltage range from 0.1 to 0.5 V, which is typical of electric double-layer charging/discharging . Because of the rapid diffusion of electrolyte ions into the composite electrodes, the typical CV analysis of the Bio-C/MoS 2 composite (Figure c) revealed a highly capacitive behavior.…”

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confidence: 87%

“…40,41 Figure 5b shows the CV of the Bio-C electrode which has confirmed a nearly rectangular structure without any noticeable redox peaks within the voltage range from 0.1 to 0.5 V, which is typical of electric double-layer charging/ discharging. 42 Because of the rapid diffusion of electrolyte ions into the composite electrodes, the typical CV analysis of the Bio-C/MoS 2 composite (Figure 5c) revealed a highly capacitive behavior. The attachment of the MoS 2 nanosphere to the Bio-C sheets significantly improved the integral area of the CV peak, which improved the electrical conductivity and facilitated ion transport.…”

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confidence: 99%

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Facile Synthesis of Biocarbon-Based MoS₂ Composite for High-Performance Supercapacitor Application

2022

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Nanocomposites are gaining high demand for the development of next-generation energy storage devices because of their eco-friendly and cost-effective natures. However, their shortterm energy retainability and marginal stability are regarded as hindrances to overcome. In this work, we demonstrate a highperformance supercapacitor fabricated by biocarbon-based MoS 2 (Bio-C/MoS 2 ) nanoparticles synthesized by a facile hydrothermal approach using date fruits. Here, we report the high specific capacitance for a carbon-based nanocomposite employing the pyrolysis technique of converting agricultural biowaste into a highly affordable energy resource. The biocompatible Bio-C/MoS 2 nanospheres exhibited a high capacitance of 945 F g −1 at a current density of 0.5 A g −1 and an excellent reproducing stability of 92% after 10000 charge/discharge cycles. In addition, the Bio-C/MoS 2 NS showed an exceptional power density of 3800−8000 W kg −1 and an energy density of 74.9−157 Wh kg −1 . The results would pave a new strategy for design of eco-friendly materials toward the high-performance energy storage technology.

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confidence: 87%

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confidence: 99%

Facile Synthesis of Biocarbon-Based MoS₂ Composite for High-Performance Supercapacitor Application

2022

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“…1f), indicating the coexistence of micropores and mesopores. [32][33][34] Compared to HDPG, HOPG has a larger amount of micropores and higher specic surface area owing to the KOH etching of GO during the hydrothermal process (Fig. S3 and Table S1, ESI †), which allows more active species to be accommodated and thus higher capacity.…”

Section: Resultsmentioning

confidence: 99%

Polyiodide shuttle inhibition in ethylene glycol-added aqueous electrolytes for high energy and long-term cyclability of zinc–iodine batteries

et al. 2023

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“…By doping heteroatoms, carbon-based materials exhibit exceptional electrochemical properties in lithium-ion and sodium-ion batteries [ 20 ]. Atomic metal ion-doped graphene offers strong conductivity and stability to the materials, resulting in good pseudocapacitance performance [ 21 ]. By inserting small BN domains, the band gap of graphene could well be efficiently expanded near K as well as K′ points [ 7 ].…”

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First-Principles Study of Electronic Properties of Substitutionally Doped Monolayer SnP3

Zhang

Ruan

et al. 2022

Materials

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SnP3 has a great prospect in electronic and thermoelectric device applications due to its moderate band gap, high carrier mobility, absorption coefficients, and dynamical and chemical stability. Doping in two-dimensional semiconductors is likely to display various anomalous behaviors when compared to doping in bulk semiconductors due to the significant electron confinement effect. By introducing foreign atoms from group III to VI, we can successfully modify the electronic properties of two-dimensional SnP3. The interaction mechanism between the dopants and atoms nearby is also different from the type of doped atom. Both Sn7BP24 and Sn7NP24 systems are indirect bandgap semiconductors, while the Sn7AlP24, Sn7GaP24, Sn7PP24, and Sn7AsP24 systems are metallic due to the contribution of doped atoms intersecting the Fermi level. For all substitutionally doped 2D SnP3 systems considered here, all metallic systems are nonmagnetic states. In addition, monolayer Sn7XP24 and Sn8P23Y may have long-range and local magnetic moments, respectively, because of the degree of hybridization between the dopant and its adjacent atoms. The results complement theoretical knowledge and reveal prospective applications of SnP3-based electrical nanodevices for the future.

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Large-scale mechanical preparation of graphene containing nickel, nitrogen and oxygen dopants as supercapacitor electrode material

Cited by 10 publications

References 41 publications

Facile Synthesis of Biocarbon-Based MoS₂ Composite for High-Performance Supercapacitor Application

Facile Synthesis of Biocarbon-Based MoS₂ Composite for High-Performance Supercapacitor Application

Polyiodide shuttle inhibition in ethylene glycol-added aqueous electrolytes for high energy and long-term cyclability of zinc–iodine batteries

First-Principles Study of Electronic Properties of Substitutionally Doped Monolayer SnP3

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Large-scale mechanical preparation of graphene containing nickel, nitrogen and oxygen dopants as supercapacitor electrode material

Cited by 10 publications

References 41 publications

Facile Synthesis of Biocarbon-Based MoS2 Composite for High-Performance Supercapacitor Application

Facile Synthesis of Biocarbon-Based MoS2 Composite for High-Performance Supercapacitor Application

Polyiodide shuttle inhibition in ethylene glycol-added aqueous electrolytes for high energy and long-term cyclability of zinc–iodine batteries

First-Principles Study of Electronic Properties of Substitutionally Doped Monolayer SnP3

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Facile Synthesis of Biocarbon-Based MoS₂ Composite for High-Performance Supercapacitor Application

Facile Synthesis of Biocarbon-Based MoS₂ Composite for High-Performance Supercapacitor Application